Electronics Letters · 1991 · 10 citations · 0 references
EngineeringCommunicationElectrical EngineeringOpticsOptoelectronicsPhotonicsFiber-optic CommunicationLaser DiodesOptical AmplifiersOptical Communication SystemsOptical ModulationOptical SourcesErbium-doped Fiber AmplifiersFiber Optic Communication SystemsIntensity ModulationLaser AmplifiersLaser Diode ModulationOptical AmplificationOptical TransmissionOptical Transmission Systems
A bidirectional transmission scheme is proposed that is suitable for an optical transmission system with Er3+-doped fibre amplifiers using pump intensity modulation of a 1.48 μm pump laser diode. The practical feasibility of this proposal is confirmed by a system analysis and a transmission experiment. No penalty was observed for an amplified 2.4 Gbit/s signal at 1.536 μ with a 5 MHz subcarrier from a 1.48 μm pump laser diode.